The spudding of the well follows new 2D seismic carried out in the southwest portion of the block. Alange has a 50% working interest in Topoyaco, with Pacific Rubiales Energy holding the other 50%. Alange is the operator of this field.
The structural model of Topoyaco consists of thrust faults with repeated sections. The final location of the well follows the new 2D seismic carried out during the past eight months, as a necessary complement to previously run 3D and 2D seismic.
The structural complexity of the area required a thorough analysis, which has depicted and pinpointed three large attractive prospects (B, C and D), Alange said.
The first two prospects are in the overthrust blocks and the last one is in the subthrust block, the latter being the largest prospect. The first well, Topoyaco-1, is targeting the prospect B, and it will be followed with additional spudding in early August of the Topoyaco-2 well, targeting the prospect C.
Topoyaco-1 will be drilled to an estimated depth of 6,365ft MD, while Topoyaco-2 will go to an estimated depth of 8,510ft MD. The target formations of both these prospects are Villeta and Caballos, which produce oil in the same region.
Topoyaco’s current exploration plan is supported by two rigs that have been contracted for the upcoming several months. Drilling time for the first well is anticipated at 40 days.
